[go: up one dir, main page]

WO2008115676A3 - Procédés d'activation d'assemblages électrode-membrane - Google Patents

Procédés d'activation d'assemblages électrode-membrane Download PDF

Info

Publication number
WO2008115676A3
WO2008115676A3 PCT/US2008/055293 US2008055293W WO2008115676A3 WO 2008115676 A3 WO2008115676 A3 WO 2008115676A3 US 2008055293 W US2008055293 W US 2008055293W WO 2008115676 A3 WO2008115676 A3 WO 2008115676A3
Authority
WO
WIPO (PCT)
Prior art keywords
membrane electrode
volts
electrode assembly
cycles
processes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2008/055293
Other languages
English (en)
Other versions
WO2008115676A2 (fr
Inventor
Hanwei Lei
Paolina Atanassova
Ryan C Wall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cabot Corp
Original Assignee
Cabot Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cabot Corp filed Critical Cabot Corp
Publication of WO2008115676A2 publication Critical patent/WO2008115676A2/fr
Publication of WO2008115676A3 publication Critical patent/WO2008115676A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0289—Means for holding the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
    • H01M8/04238—Depolarisation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
    • H01M8/1011—Direct alcohol fuel cells [DAFC], e.g. direct methanol fuel cells [DMFC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

La présente invention concerne un procédé d'activation d'un assemblage électrode-membrane, tel qu'un assemblage électrode-membrane de pile à combustible au méthanol, à l'aide d'un combustible hydrocarboné, par exemple un combustible alcanol tel que du méthanol, et d'un oxydant. Le procédé selon l'invention consiste à appliquer de manière répétée un potentiel croissant ou décroissant au cours de chaque cycle d'une pluralité de cycles sur une plage de tension d'au moins 0,1 V, par exemple d'au moins 0,2 V ou d'au moins 0,3 V, jusqu'à ce que l'assemblage électrode-membrane soit sensiblement activé. Les cycles sont éventuellement organisés en jeux de cycles entrecoupés de périodes de repos. La température à laquelle les cycles sont exécutés est éventuellement augmentée ou baissée dans un jeu de cycles respectif.
PCT/US2008/055293 2007-03-16 2008-02-28 Procédés d'activation d'assemblages électrode-membrane Ceased WO2008115676A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/687,293 2007-03-16
US11/687,293 US20080226952A1 (en) 2007-03-16 2007-03-16 Processes for activating membrane electrode assemblies

Publications (2)

Publication Number Publication Date
WO2008115676A2 WO2008115676A2 (fr) 2008-09-25
WO2008115676A3 true WO2008115676A3 (fr) 2009-01-08

Family

ID=39387087

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/055293 Ceased WO2008115676A2 (fr) 2007-03-16 2008-02-28 Procédés d'activation d'assemblages électrode-membrane

Country Status (2)

Country Link
US (1) US20080226952A1 (fr)
WO (1) WO2008115676A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9099703B2 (en) * 2012-03-28 2015-08-04 GM Global Technology Operations LLC Fast MEA break-in and voltage recovery

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003028131A2 (fr) * 2001-08-29 2003-04-03 Forschungszentrum Jülich GmbH Pile a combustible, empilement de cellules electrochimiques et procede de fonctionnement de ces derniers
US20060014060A1 (en) * 2004-06-21 2006-01-19 Hitachi Cable, Ltd. Fuel cell characteristic recovery method and apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7098163B2 (en) * 1998-08-27 2006-08-29 Cabot Corporation Method of producing membrane electrode assemblies for use in proton exchange membrane and direct methanol fuel cells
US6589686B2 (en) * 2001-02-28 2003-07-08 Ovonic Battery Company, Inc. Method of fuel cell activation
US6805983B1 (en) * 2002-02-11 2004-10-19 H Power Corporation Activation of electrochemical cells with catalyst electrodes
WO2003083975A2 (fr) * 2002-03-29 2003-10-09 Estco Battery Management Inc. Systeme de gestion de l'etat de fonctionnement d'une pile a combustible
US7297429B2 (en) * 2002-07-05 2007-11-20 Gore Enterprise Holdings, Inc. Ionomer for use in fuel cells and method of making same
US6962760B2 (en) * 2003-03-25 2005-11-08 The Regents Of The University Of California Methods of conditioning direct methanol fuel cells
US20050136298A1 (en) * 2003-12-19 2005-06-23 Manikandan Ramani Methods of treating fuel cells and fuel cell systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003028131A2 (fr) * 2001-08-29 2003-04-03 Forschungszentrum Jülich GmbH Pile a combustible, empilement de cellules electrochimiques et procede de fonctionnement de ces derniers
US20060014060A1 (en) * 2004-06-21 2006-01-19 Hitachi Cable, Ltd. Fuel cell characteristic recovery method and apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EICKES C ET AL: "Recoverable Cathode Performance Loss in Direct Methanol Fuel Cells", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, ELECTROCHEMICAL SOCIETY. MANCHESTER, NEW HAMPSHIRE, US, vol. 153, no. 1, 1 January 2006 (2006-01-01), pages A171 - A178, XP007904440, ISSN: 0013-4651 *

Also Published As

Publication number Publication date
WO2008115676A2 (fr) 2008-09-25
US20080226952A1 (en) 2008-09-18

Similar Documents

Publication Publication Date Title
MY141039A (en) Fuel cell
WO2007001343A3 (fr) Electrode de pile a combustible nanostructuree
WO2009052321A3 (fr) Actionneurs de gouttelettes, systèmes et procédés
EP2432058B8 (fr) Electrode membrane a base de nanofils pour piles a combustible
EP2036153B8 (fr) Procédé de recyclage des composants d'un ensemble membrane-électrodes d'une pile à combustible de type pem
DE602005017518D1 (de) Membran-elektrodenbaugruppen für brennstoffzellen, ihre herstellung, verwendung und diese enthaltende brennstoffzellen
WO2006030442A3 (fr) Methodes de culture ex vivo de cellules souches et de precurseur par co-culture avec des cellules mesenchymales
DE602005018755D1 (de) Elektrolytmaterial für eine polymerelektrolyt-brennstoffzelle , elektrolytmembran und membranelektrodenbaugruppe
EP1889863A4 (fr) Polymere contenant un groupe acide sulfonique, son procede de fabrication, composition de resine contenant un tel polymere contenant un groupe acide sulfonique, membrane polymerique d'electrolyte, ensemble electrode/membrane polymerique d'electrolyte, et pile a combustible
TWI371886B (en) Process for preparing of a catalyst solution for fuel cell and a membrane electrode assembly using the same
BRPI0912651A2 (pt) membrana polimérica condutora de próton, método para produzir uma membrana polimérica condutora de próton, eletrodo com um revestimento polimérico condutor de prótons, unidade de membrana-eletrodo, e, célula de combustível
JP2008513951A5 (ja) 燃料電池膜電極アセンブリ
WO2007120872A3 (fr) Appareil et procédé de cycle de purge de pile à combustible
DE602007003439D1 (de) Kraftfahrzeugbaugruppe zum einbau in einen teil einer fahrzeugkarosserie
DE602007001485D1 (de) Katalysator, Verfahren zu dessen Herstellung und Membranelektrodenanordnung sowie Brennstoffzellensystem damit
DE602007008004D1 (de) Membranelektrodenanordnung für eine Brennstoffzelle, Verfahren zu dessen Herstellung und Brennstoffzellensystem damit
DE112009002507B8 (de) Verstärkte brennstoffzellen-elektrolytmembran, membran-elektroden-anordnung und polymerelektrolytbrennstoffzelle, diese enthaltend und herstellungsverfahren dazu
EP2246924A4 (fr) Catalyseur d'électrode de pile à combustible, son procédé de fabrication et pile à combustible de type à polymères solides utilisant ledit catalyseur
EP3486984A4 (fr) Base d'électrode de diffusion de gaz, procédé de production de ladite base d'électrode, électrode de diffusion de gaz, ensemble électrode à membrane et pile à combustible à polymère solide
DE112007000203T8 (de) Hoch-hydrophilisierter Träger, katalysatortragender Träger, Brennstoffzellenelektrode, Verfahren zum Herstellen derselben und mit selbigen ausgestattete Polymerelektrolyt-Brennstoffzelle
EP1968144A4 (fr) Produit de jonction d électrode membranaire et pile à combustible l'utilisant
EP1953853A4 (fr) Ensemble couches catalytiques membranaires, ensemble électrodes membranaires, pile à combustible et empilement de piles à combustible
EP2299530A4 (fr) Nouvelle électrode à enzyme, et pile à combustible comportant l'électrode à enzyme
DE112008003166B8 (de) Membranelektrodenanordnung, Brennstoffzelle und Verfahren zur Herstellung selbiger
DE602006014676D1 (de) Festpolymerelektrolyt-membran, herstellungsverfahren dafür und brennstoffzelle

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08743596

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08743596

Country of ref document: EP

Kind code of ref document: A2